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Finding the Fourth Proportional to 877,592.80, 1,316,389.20 and 818,543.80

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Solution

The fourth proportional to 877,592.80, 1,316,389.20 and 818,543.80 is: 1,227,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,592.80 : 1,316,389.20 = 818,543.80 : x
  2. Step 2: Convert to fraction form
    877,592.80/1,316,389.20 = 818,543.80/x
  3. Step 3: Cross multiply
    877,592.80x = 1,316,389.20 × 818,543.80
  4. Step 4: Simplify right side
    877,592.80x = 1,077,522,218,046.96
  5. Step 5: Solve for x
    x = 1,077,522,218,046.96/877,592.80
  6. Step 6: Final answer
    x = 1,227,815.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.